宏大构想：我们要去火.!星吗？

简介

The attempt to  se?\nd and la\&nd astronauts on Mar*%^s -<"risks >^bil': l(.ions *!of dolla<[`rs and t>]he liv::=es of th<)"<:ose br):$ave enough^ to at"tempt it. Is the possible b>
enefit r@eally wo"rth the ris.k? An %d is i
(t/,< r;'ea;
ll-y .?>/achievable?
@　　Gui-ding u'$"s through th`!$i``s
*[ ethica*l](@, and s
$@cientif?%i:,c(? < min!*efield is Dr K ]_evin Fong. Kevin&[;#?@`39;;$s :!"div,]erse\"] ba-ckground=? in ast!ro^physic=s, a(_+eron
`autics and `medicine makes him uniquely placed to und )^"ers...